Question

how do the following properties very in a period and in a group of periodictable
a.electropositivity
b. atomicradius

Answer 1

across a period the electropositivity of an element decreases due to increased nuclear pull on the valence shell

similary the atomic radius also decreases across the period due to same reason

Answer 2

Hey mate!!

(a) Electropositivity:-

→ electropositivity increases while going down in a group because ionization enthalpy decreases in group.

(b) Atomic Redius:-

→ atomic radius increases while going down in group because number of shell increases in group.

Hope it helps!!

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